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Old 03-19-2014, 09:18 PM   #1
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Default Excalibur 21 noise

So I went and bought the Excalibur 21 the other day. $800 CDN at KMS tools. Huge upgrade from my Mastercraft that my dad bought me! One question though. I notice a knocking when the saw is on. It's not terrible, and it doesn't vibrate hardly at all, but I was wondering if this is normal. It did seem to stop once when a blade slipped out of the holder, but then started right up again.
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Old 03-19-2014, 11:12 PM   #2
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My EX-21 started making a noise a while ago. Turned out to be a loose nut that connects the crank arm to the rocker (see photo). At a given speed setting (the indicator mark pointing directly to the back of the saw) the saw will make a lot of noise. If I pushed the link arm away from the motor shaft the noise would stop. The nut that needs tightening is not visible but it takes a 8mm wrench. The wrench shown in the photo was made by another member of this forum, as was the photo. I made my wrench out of a piece of bent metal and filed the opening to fit on the 8mm nut.
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Old 03-20-2014, 08:38 AM   #3
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Hey thanks a ton Tom, I will take a look tonight and see if I can get it to go away. Do you have another link to the picture? It is only showing up as a thumbnail.

thanks
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Old 03-20-2014, 10:16 AM   #4
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I had the same problem with my EX21. I fould that the lower blade arm was hitting the lower blade guard. After expermiting in making minor adjustmens to the blade guard. I removed the blade guiard problem solved.

Since then my saw developed another knock when first starting the scroll saw and it would disappear after a brief period of operation. Ray (Seyco) told me that this knock is due to a bellows in the lower blade arm, and would not cause any problems. He suggested that I could drill a hole in the bellows to relieve the noise. Since the knock dissapears quickly, I did not feel it was neccessary to drill the hole.

cwmagee

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Old 03-20-2014, 05:43 PM   #5
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My EX 21 also makes a noise.
Tom, could you put a bigger picture for me to realize what I need to do?
Thank you.
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Old 03-20-2014, 06:39 PM   #6
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Default Bigger photo

The original photo was lost on my other computer when it crashed. This is a bit bigger but is starting to get grainy. I think you can see what I'm talking about though.

Tom
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Old 03-22-2014, 10:50 PM   #7
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Quote:
Originally Posted by cwmagee View Post
I had the same problem with my EX21. I fould that the lower blade arm was hitting the lower blade guard. After expermiting in making minor adjustmens to the blade guard. I removed the blade guiard problem solved.

Since then my saw developed another knock when first starting the scroll saw and it would disappear after a brief period of operation. Ray (Seyco) told me that this knock is due to a bellows in the lower blade arm, and would not cause any problems. He suggested that I could drill a hole in the bellows to relieve the noise. Since the knock dissapears quickly, I did not feel it was neccessary to drill the hole.

cwmagee

Could you explain a bit more where the bellows is? My knock stopped for a day or two, and then started again. I tried the bent wrench fix that Tom suggested might be an issue, to no success.
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Old 03-23-2014, 09:11 AM   #8
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Per Ray of Seyco, It is just inside the lower housing. Since I did not drill the hole, I cannot give the exact location. I would try to get a paarts cut away before attempting to make the modification

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Old 03-23-2014, 07:20 PM   #9
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All Excalibur saws are covered by a warranty and the place to get warranty repairs done is thru Ray at Seyco - Seyco, The Scroll Saw Specialists, INC. Take the time to call Ray while at your saw. Discuss with him your problem. He will ask for a serial number so have that available before you call him. Ray is the most patient and knowledgeable person about the Excalibur saws. Ray has some information about the clamping unit of the Excaliburs on his website as well as manual for the saws if you misplaced yours [ours still has not appeared since our move in 2010!].

Also, check out the Excalibur Tuning Resource written by Keith Fenton in this tools & blades section of the forum. There is TONS of great information there.
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Old 03-24-2014, 11:07 AM   #10
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Ray at Seyco is a great source of information and assistance to our US friends. I don't think he is able to help with any warranty work or parts supply to us in Canada. My one dealing with Ray (e-mail) resulted in his recommending I contact a supplier in Canada. As for the manual, it is available here http://www.general.ca/pdf/machines/e..._21_30_ENG.pdf

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